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copilot-swe-agent[bot]
8e4fccdfc6
- Create proper patch file for ENet FreeBSD support - Apply patch automatically during CMake configuration on FreeBSD - Avoid modifying submodule files directly Co-authored-by: ReenigneArcher <42013603+ReenigneArcher@users.noreply.github.com>
64 lines
2.6 KiB
Diff
64 lines
2.6 KiB
Diff
diff --git a/unix.c b/unix.c
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index 3d57e9d..c2318ca 100644
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--- a/unix.c
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+++ b/unix.c
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@@ -373,6 +373,14 @@ enet_socket_create (int af, ENetSocketType type)
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}
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#endif
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+#if defined(__FreeBSD__) && defined(IP_RECVDSTADDR)
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+ {
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+ // Enable IP_RECVDSTADDR for FreeBSD to receive destination address
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+ int on = 1;
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+ setsockopt(sock, IPPROTO_IP, IP_RECVDSTADDR, (char *)&on, sizeof(on));
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+ }
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+#endif
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+
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#ifdef IP_PKTINFO
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{
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// We turn this on for all sockets because it may be required for IPv4
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@@ -617,6 +625,21 @@ enet_socket_send (ENetSocket socket,
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// from this peer to ensure it correctly recognizes our responses as
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// coming from the expected host.
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if (localAddress != NULL) {
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+#if defined(__FreeBSD__) && defined(IP_SENDSRCADDR)
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+ if (localAddress->address.ss_family == AF_INET) {
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+ struct in_addr srcAddr = ((struct sockaddr_in*)&localAddress->address)->sin_addr;
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+
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+ msgHdr.msg_control = controlBufData;
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+ msgHdr.msg_controllen = CMSG_SPACE(sizeof(srcAddr));
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+
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+ struct cmsghdr *chdr = CMSG_FIRSTHDR(&msgHdr);
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+ chdr->cmsg_level = IPPROTO_IP;
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+ chdr->cmsg_type = IP_SENDSRCADDR;
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+ chdr->cmsg_len = CMSG_LEN(sizeof(srcAddr));
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+ memcpy(CMSG_DATA(chdr), &srcAddr, sizeof(srcAddr));
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+ }
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+ else
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+#endif
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#ifdef IP_PKTINFO
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if (localAddress->address.ss_family == AF_INET) {
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struct in_pktinfo pktInfo;
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@@ -744,6 +767,21 @@ enet_socket_receive (ENetSocket socket,
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// to ensure we respond from the correct address/interface.
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if (localAddress != NULL) {
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for (struct cmsghdr *chdr = CMSG_FIRSTHDR(&msgHdr); chdr != NULL; chdr = CMSG_NXTHDR(&msgHdr, chdr)) {
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+#if defined(__FreeBSD__) && defined(IP_RECVDSTADDR)
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+ if (chdr->cmsg_level == IPPROTO_IP && chdr->cmsg_type == IP_RECVDSTADDR) {
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+ struct sockaddr_in *localAddr = (struct sockaddr_in*)&localAddress->address;
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+
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+ localAddr->sin_family = AF_INET;
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+ localAddr->sin_addr = *(struct in_addr*)CMSG_DATA(chdr);
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+ // FreeBSD doesn't populate sin_port in RECVDSTADDR, but we don't need it
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+ // since we only use the address part for routing decisions
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+ localAddr->sin_port = 0;
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+
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+ localAddress->addressLength = sizeof(*localAddr);
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+ break;
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+ }
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+ else
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+#endif
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#ifdef IP_PKTINFO
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if (chdr->cmsg_level == IPPROTO_IP && chdr->cmsg_type == IP_PKTINFO) {
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struct sockaddr_in *localAddr = (struct sockaddr_in*)&localAddress->address;
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